Results 41 to 50 of about 75,092 (126)

The Eddy Flux Transport of the Magnetohydrodynamic Quasi‐Geostrophic Disturbances

Geophysical Research Letters
The classic Eliassen‐Palm (E‐P) flux in the geophysical fluid dynamics is a vector to qualify the eddy momentum and heat flux transport by Rossby waves in the latitude‐height plane. In this investigation, we derive two magnetic E‐P fluxes to quantify the
Chengkang Li, Yaokun Li
doaj   +1 more source

Peak ground acceleration prediction for on-site earthquake early warning with deep learning

Scientific Reports
Rapid and accurate prediction of peak ground acceleration (PGA) is an important basis for determining seismic damage through on-site earthquake early warning (EEW).
Yanqiong Liu, Qingxu Zhao, Yanwei Wang
doaj   +1 more source

Deriving focal mechanism solutions of small to moderate earthquakes in Sichuan, China via a deep learning method

Earthquake Research Advances
As one of the most seismically active regions, Sichuan basin is a key area of seismological studies in China. This study applies a neural network model with attention mechanisms, simultaneously picking the P-wave arrival times and determining the first ...
Chen Zhang, Ji Zhang, Jie Zhang
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A Microseismic Phase Picking and Polarity Determination Model Based on the Earthquake Transformer

Applied Sciences
Phase arrival times and polarities provide essential kinematic constraints for and dynamic insights into seismic sources, respectively. This information serves as fundamental data in seismological study.
Ling Peng, Lei Li, Xiaobao Zeng
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Decomposed SH-, SV-, and P-wavefields and their visualizations for interpretation of reproduced synthetic waves in the Osaka sedimentary basin, Japan, due to a Mw 5.6 earthquake beneath its edge

Earth, Planets and Space
We decomposed complex synthetic wavefields in an inhomogeneous sedimentary basin into P-, SV-, and SH-wavefields, and quantitatively evaluated the amplitude, propagation velocity, and propagation direction of coherent waves in each decomposed wavefield ...
Hirotoshi Uebayashi, Haruko Sekiguchi
doaj   +1 more source

Towards routine determination of focal mechanisms obtained from first motion P-wave arrivals [PDF]

Geophysical Journal International, 2017
openaire   +1 more source

New focal mechanism solutions for Venezuela and neighbouring areas 2005-2008: importance of the National Seismological Network”™s density and distribution

Revista Técnica de la Facultad de Ingeniería, 2012
  The purpose of this work is to show 66 new focal mechanism solutions for some seismic events which have occurred in Venezuela and neighbouring areas between October 2005 and December 2008.
Miguel Palma, Franck Audemard, Gloria Romero   +2 more
doaj  

Source faulting properties of the 2021 MS 6.4 Yangbi, China, earthquake sequence

Geomatics, Natural Hazards & Risk
The 2021 Yangbi earthquake sequence occurred on the southwestern margin of the Chuandian block in China, which is a typical foreshock-mainshock-aftershock sequence.
Xiangyun Guo, Xu Zhang, Lihua Fang, Dahu Li, Lei Yi   +4 more
doaj   +1 more source

An Automatic Workflow to Infer Focal Mechanisms of Microearthquakes: Application to Southern Italy

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The focal mechanism of an earthquake is a key element to constrain the slipping fault and the stress field. Despite that, its calculation may be very challenging in the case of small-magnitude earthquakes because of the difficulty in determining the ...
Mauro Palo, Ortensia Amoroso, Ferdinando Napolitano, Giovanni Messuti, Silvia Scarpetta   +4 more
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Construction and application of foundational models for intelligent processing of microseismic events in mines

Meitan xuebao
Under the background of intelligent mine construction, intelligent microseismic signal processing serves as the cornerstone for precise early warning of mine dynamic disasters.
Anye CAO, Maotao LI, Xu YANG, Yao YANG, Sen LI, Yaoqi LIU, Changbin WANG   +6 more
doaj   +1 more source